摘要
成熟甘蔗茎秆积累高浓度蔗糖,其蔗糖积累涉及到蔗糖的合成、分解和运输等生理过程,而调控甘蔗茎中蔗糖积累的关键性因素是存在于快速发育的茎细胞中蔗糖糖代谢相关酶的活性和蔗糖的跨膜运输能力,而不是作为源叶输出光合产物的能力和韧皮部运输蔗糖的效率。为此,本文主要从蔗糖进入茎节的途径、蔗糖在液泡中的积累及其调控等方面作了概述,并指出运用分子生物学、反向遗传学和细胞生物学手段研究有关酶基因、功能性蛋白、糖信号对甘蔗蔗糖运输和积累的作用将是今后的重要研究方向。
Mature sugarcane stems are capable of accumulating high concentrations of sucrose, sucrose accumu-lation involves physiological processes including sucrose synthesis, decomposition and transport, the key factor of sucrose accumulation is that the sucrose metabolism-related enzymes ability and sucrose transmembrane transport capacity in the rapid development of stem cells, rather than output capability of photosynthetic product in source leaf and transport-efficiency in phloem. We reviewed the research progresses of the way of sucrose enter the node, sucrose accumulation in vacuoles and the regulation of sucrose accumulation. It pointed out following aspects will be important research directions in future. The application of molecular biology, reverse genetics and cell biology to study the enzyme gene, functional protein, sugar signal on the role of sucrose transoort and accumulation.
出处
《基因组学与应用生物学》
CAS
CSCD
北大核心
2009年第2期385-390,共6页
Genomics and Applied Biology
基金
国家自然科学基金(30660097)
中央级公益科研院所基本科研业务费和现代农业产业技术体系建设专项资金共同资助
关键词
甘蔗
蔗糖
积累
Sugarcane, Sucrose, Accumulation
